Monkey D. Luffy (One Piece) vs King K. Rool (Donkey Kong). If you have a UniVS template with a picture of the two to replace the pictures, feel free. Comment your opinion on who would win and if you'd like to see this as an episode.
These two are pirates. They both have stolen fruit at one point, K. Roll stole Donkey Kong's banana hoard on multiple occasions, and Luffy stole the Gum Gum Fruit that gave him his powers from Shanks. K. Rool is a pirate king, and Luffy dreams of being king of the pirates. They both also have a middle initial. They both also seem to have changed sizes before, like K. Rool suddenly becoming a giant in Donkey Kong 64, or Luffy's Third Gear.
I'm leaning towards K. Rool for this one. While Luffy has shown enough feats and has enough abilities to keep up with K. Rool, he has the lower stats of the two. Fourth Gear definitely puts their stats on an even playing field, but that takes a heavy toll on Luffy's body. Luffy may be immune to most blunt force attacks, but he'd have to go all out for even a chance of winning, which will exhaust his, allowing K. Rool to take advantage. In conclusion, unlike Diddy, this is one Monkey that King K. Rool won't get beaten by.